1. Fertiliser Products Timings of Application Suggested Programmes
P & K Fertiliser Choice
Fertiliser Products
Timings of Application
Suggested Programmes
Complete a Farm Fertiliser Plan to Determine Actual Farm N & P Allowances

2. Types of Fertiliser.. Re think Req.!
16% Super P
MOP 50% K
0-7-30 /
25-5-0
16% Super P(50kg bag)
Contains:-
- 16 units P
18 – 6 – 12 (50kg bag)
Contains:-
- 18 units N
- 6 units P
- 12 units K
23 – 10 – 0 (50kg bag)
Contains:-
- 23 units N
- 10 units P
Now Req.
Complete a Farm Fertiliser Plan to Determine Actual Farm N & P Allowances

3. Fertiliser Compound Options….
Situation
Fertiliser Type
Grazing
/ / /
/ / /
/ DAP (18N & 20 P) /
Silage / Maize
/ / /
/ /
Build Up
/ MOP 50% K /
16% Super P / / /
Fertiliser Blends
Any Fertiliser can be made
Max. 40 units in 50kg bag
Complete a Farm Fertiliser Plan to Determine Actual Farm N & P Allowances

4. Protected Urea products
Nitrogen Sources
N Type
% N
Cost / kg
Urea
46%
0.80c
Urea + NBPT
0.85c
CAN
27%
0.95c
Protected Urea products
N %
P %
K %
S % 46 38 7 29 14
3.5
Complete a Farm Fertiliser Plan to Determine Actual Farm N & P Allowances

5. Fertiliser programmes (P, K & S)
Standard compounds for Index 3 situation P:
50% early
50% split in summer
High P/K Compound
(50% of P)
High N - Low P/K
High N - Low P/K
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Sulphur
Extra P
Extra K
High K
N-P-0 compound
High P
N-0-K compound / Straight K
Low P and K
higher rates / Slurry
Products:
K:P ratio of 2:1  3:1 ideal for grazing
Slurry or K:P 4:1  6:1 ideal for silage
Adjust based on soil tests, crops, stocking rates
Complete a Farm Fertiliser Plan to Determine Actual Farm N & P Allowances

6. K Advice & Grassland Grazing Ground Silage Ground
Low K requirements (animal recycling)
Apply index 3 rates to avoid Grass Tetany
Apply build up rates in Sept / Oct
Silage Ground
High K requirements
Max. 90 kg K/ha
Apply build up rates Sept / Oct
Target cattle slurry to silage fields
Complete a Farm Fertiliser Plan to Determine Actual Farm N & P Allowances

7. New P Allowances & Tailoring a Fertiliser Programme
Suggested Fertiliser programmes
Many combinations
Availability of products
Complete a Farm Fertiliser Plan to Determine Actual Farm N & P Allowances

8. New Fertiliser P Allowances
Grassland Stocking Rate (kg/ha)
P Index 1 2 3 4 63 43 13 66 46 16
>250 69 49 19
50kg Index 1
30kg Index 2
1. Adjust for Conc. Feed (5kg/ton)
2. Slurry Removed from calculations
Complete a Farm Fertiliser Plan to Determine Actual Farm N & P Allowances

9. New Fertiliser P Allowances
P Rates adjusted for 1t/ha Conc. Feed (5kg/ton)
Grassland Stocking Rate (kg/ha)
P Index 1 2 3 4 58 38 8 61 41 11
>250 64 44 14
Complete a Farm Fertiliser Plan to Determine Actual Farm N & P Allowances

10. Example Dairy - N, P & K Rates
P Rates adjusted for 1t/ha Conc. Feed (5kg/ton)
Stocking Rate 131 – 170 kg Org N/ha
P & K Index N P K
Kg/ha (units/ac) 1
206 (165)
58 (46)
90 (72) 2
38 (30)
60 (48) 3
8 (6)
30 (24) 4
Complete a Farm Fertiliser Plan to Determine Actual Farm N & P Allowances

11. Suggested Fertiliser Programmes
The following are a number of suggested fertiliser programmes based on new P allowances.
Prepare a farm fertiliser plan to determine field N, P & K allowances
Formulate fertiliser programmes base on the following
Soil Types ( heavy / light / peaty)
Fertilisers should be applied as follows to reduce nutrient losses:-
Select the Right Product
At the Right Rate
At the Right Time
In the Right Place
Protected Urea referred to as Urea+ in example fertiliser programmes in slides 12 tom 23. Refer to slide 4 for different protected urea formulations

12. Example Grazing Ground & Fertiliser Programme SR 131 – 170 kg Org N/ha (P & K Index 1)*
Advice
March
April
May
June /
July
Sept
Total
Product
(units/ac)
2.0bag
18’s
1.75bag 18’s/ac
~0.5bag
Urea +
N Splits 29 42 34 35 25 N
165 36 32 27
160 P 46 12 10 K 72 24 21 69 S
6-12 6
Protected- Urea (Urea +NBPT) +/- S can be used as an alternative to CAN or Sul-CAN

13. Example Grazing Ground & Fertiliser Programme SR 131 – 170 kg Org N/ha (P & K Index 3)* - Peat Soil
Advice
March
April
May
June /
July
Sept
Total
Product
(units/ac)
1 bag/ac
1.5 bag/ac
0.9 bag/ac
Urea + 38% N & 7% S
Urea +
29% N & 14% K
N Splits 29 42 34 25 N
165 27 26
166
P (3) 6
2.5
3.5 K 24 5
7.5 14 60 S
6-12 15
Protected- Urea (Urea +NBPT) +/- S can be used as an alternative to CAN or Sul-CAN

14. Example Grazing Ground & Fertiliser Programme SR 131 – 170 kg Org N/ha (P & K Index 1)*
Advice
Feb
March
April
May
June /
July
Sept
Total
Product
(units/ac)
1,500g/ac
1.25 bag/ac
1 bag/ac
Urea +
1.8 bag/ac
1.4bag/ac
0.5bag
/ac
N Splits 27 38 32 25 N
165 11 29 23 P 46 4 12 14 41 K 72 43 22 75 S
6-12 2 7 5
Protected- Urea (Urea +NBPT) +/- S can be used as an alternative to CAN or Sul-CAN

15. Example Grazing Ground & Fertiliser Programme SR 131 – 170 kg Org N/ha (P & K Index 2)*
Advice
Feb
March
April
May
June /
July
Sept
Total
Product
(units/ac)
1,500g/ac
1.25 bag
~1.0 bag
Urea +
1.25bag
0.9 bag
0.5 bag
N Splits 23 27 42 34 N
165 14 29 41
174 P 30 4
12.5 K
48* 43 58 S
6-12 2 7 6 15
Protected- Urea (Urea +NBPT) +/- S can be used as an alternative to CAN or Sul-CAN

16. Example Dairy - N, P & K Rates
P Rates adjusted for 1t/ha Conc. Feed (5kg/ton)
Stocking Rate 210 – 250 kg Org N/ha
P & K
Index N P K
Kg/ha (units/ac) 1
250 (200)
61 (49)
100 (80) 2
41 (33)
70 (56) 3
11 (9)
40 (32) 4
N & K Advice as per the Teagasc Green Book, 2016
Complete a Farm Fertiliser Plan to Determine Actual Farm N & P Allowances

17. Example Grazing Ground & Fertiliser Programme SR 210-250 kg Org N/ha (P & K Index 1)*
Advice
Feb
March
April
May
June
Aug
Sept
Total
Product
(units/ac)
½ bag Urea +
2.0 bag 18’s/ac
0.7 bag
Urea +
1.25bag/ac
1.0bag/ac
0.4 bag/ac
N Splits 23 32 40 27 20 N
200 36 28 P 49 12 13 10 47 K 80 24 21 69 S
10-15 5 15
Protected- Urea (Urea +NBPT) +/- S can be used as an alternative to CAN or Sul-CAN
Mark Plunkett, Teagasc, 2018

18. Example Grazing Ground & Fertiliser Programme SR 210-250 kg Org N/ha (P & K Index 3) Peat Soil
Advice
Feb
March
April
May
June
Aug
Sept
Total
Product
(units/ac)
½ bag Urea +
0.85bag/ac
Urea + 38% N & 7% S
2.2 bag/ac
0.7bag/ac Urea + 38% N & 7% S
0.6bag/ac Urea +
46% N
0.4 bag/ac
Urea +
N Splits 23 32 40 27 20 N
200 28 P 9 K 24 26 S
10-15 6 5 16
Protected- Urea (Urea +NBPT) +/- S can be used as an alternative to CAN or Sul-CAN
Mark Plunkett, Teagasc, 2018

19. Example Grazing Ground & Fertiliser Programme SR 210-250 kg Org N/ha (P & K Index 1)*
Advice
Feb
March
April
May
June
Aug
Sept
Total
Product
(units/ac)
1,500g/ac
2 bag/ac
1.5 bag/ac
1bag/ac
1bag/ac
1.2bag/ac
0.75 bag/ac
N Splits 23 34 41 27 28 20 N
200 14 43 P 49 4
2.5 12 48 K 80
7.5 5 66 S
10-15 2
4.5 3 15
Protected- Urea (Urea +NBPT) +/- S can be used as an alternative to CAN or Sul-CAN

20. Example Grazing Ground & Fertiliser Programme SR 210-250 kg Org N/ha (P & K Index 2)*
Advice
Feb
March
April
May
June
Aug
Sept
Total
Product (units/ac)
1,500g/ac
1.8bag/ac
0.9bag/ac
Urea +
0.8bag/ac
0.8bag /ac
1bag/ac
0.bag/ac
N Splits 23 35 40 30 22 20 N
200 15 41
199 P 33 4 18 10 32 K 56 43 S
10-15 2 5 17
Protected- Urea (Urea +NBPT) +/- S can be used as an alternative to CAN or Sul-CAN

21. Example Drystock - N, P & K Rates
P Rates adjust for 1t/ha Conc. Feed (5kg/ton)
Stocking Rate 131 – 170 kg Org N/ha
P &
K Index N P K
Kg/ha (units/ac) 1
160 (128)
58 (46)
75 (60) 2
38 (30)
45 (36) 3
8 (6)
15 (12) 4
N & K Advice as per the Teagasc Green Book, 2016
Complete a Farm Fertiliser Plan to Determine Actual Farm N & P Allowances

22. Example Grazing Ground & Fertiliser Programme SR 131 – 170 kg Org N/ha (P & K Index 1)*
Advice
March
April
May
June /
July
Sept
Total
Product
(units/ac)
2.0bag/ac
1.2 bag/ac
1.1 bag/ac
0.9bag/ac
0.8 bag/ac
N Splits 45 28 20 15 N
128 36 P 46 12 7 9 5 K 60 24 13 10 47 S
6-12 6 4 2
Protected- Urea (Urea +NBPT) +/- S can be used as an alternative to CAN or Sul-CAN

23. Example Grazing Ground & Fertiliser Programme SR 131 – 170 kg Org N/ha (P & K Index 2)*
Advice
Feb
March
April
May
June /
July
Sept
Total
Product
(units/ac)
1,500g/ac
1.0 bag/ac
0.7bag/ac
Urea +
0.5 bag/ac
0.5bag/ac
CAN
N Splits 23 33 24 16 N
128 14 32 12 P 30 4 10 5 29 K 45 43 S
6-12 3
3.5
Protected- Urea (Urea +NBPT) +/- S can be used as an alternative to CAN or Sul-CAN

24. 1st Cut Grass Silage N, P & K Req. (5tDM/ha)
Nutrient Requirements
1 t Grass DM Req. 4kg P & 25kg K
Fertiliser Options
Soil Index
N (kg/ha)
P (kg/ha)
K *(kg/ha)
No Slurry
Cattle 3,000ga/ac 1
125 40
175
3.5 bags/ac
1.4 bags/ac Urea
38% N +S
3.0 bags/ac S 2 30
155
3.0 bags/ac
1.6 bags/ac Urea 3 20
1.4 bags/ac Urea 38% +S
3 bags/ac CAN +S
Apply 1 bag/ac every 2 / 3 years 4
2.6 bags/ac Urea
2.6 bags/ac Urea 38% N +S
*Apply P & K balance after 1st cut (June / July / Aug)
Protected- Urea (Urea +NBPT) +/- S can be used as an alternative to CAN or Sul-CAN

25. In Summary Apply 50% of P in Spring Watch K rates
Select suitable fertiliser compounds
Compound fertilisers required each round (18’s / 24’s / 27’s / )
Replace CAN 27% N with Urea + NBPT
Apply 10 to 15units/ac S
Complete a Farm Fertiliser Plan to Determine Actual Farm N & P Allowances